2021124280812 has 384 divisors, whose sum is σ = 6171949056000. Its totient is φ = 499872384000.

The previous prime is 2021124280807. The next prime is 2021124280823. The reversal of 2021124280812 is 2180824211202.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1037004814 + ... + 1037006762.

It is an arithmetic number, because the mean of its divisors is an integer number (16072784000).

Almost surely, 2^{2021124280812} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021124280812, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3085974528000).

2021124280812 is an abundant number, since it is smaller than the sum of its proper divisors (4150824775188).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021124280812 is a wasteful number, since it uses less digits than its factorization.

2021124280812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2477 (or 2475 counting only the distinct ones).

The product of its (nonzero) digits is 8192, while the sum is 33.

The spelling of 2021124280812 in words is "two trillion, twenty-one billion, one hundred twenty-four million, two hundred eighty thousand, eight hundred twelve".